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| 1 | Beneficiation of the gold bearing ore by gravity and flotation显示文摘Gold concentration usually consists of gravity separation, flotation, cyanidation, or the combination of these processes. The choice among these processes depends on the mineralogical characterization and gold content of the ore. Recently, the recovery of gold using gravity methods has gained attention because of low cost and environmentally friendly operations. In this study, gold pre-concentrates were produced by the stepwise gravity separation and flotation techniques. The Knelson concentrator and conventional flotation were employed for the recovery of gold. Gold bearing ore samples were taken from Gümüshane Region, northern east part of Turkey. As a result of stepwise Knelson concentration experiments, a gold concentrate assaying around 620 g/t is produced with 41.4wt% recovery. On the other hand, a gold concentrate about 82 g/t is obtained with 89.9wt% recovery from a gold ore assaying 6 g/t Au by direct flotation. | Alim Gül Olga Kangal Ayhan A. Sirkeci Güven nal | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，2： | 10 |
| 2 | Percutaneous Placement of Metallic Stents in Malignant Biliary Obstruction: One-Stage or Two-Stage Procedure? Pre-Dilate or Not?显示文摘 | Mehmet ?nal Erol Aksungur Erol Akgül Mahmut O?uz Gülsah Seydao?lu | 2003 | CardioVascular and Interventional Radiology2003，，1： | 1 |
| 3 | Field developmentof resistance to Bacillus thuringiensis in diamondback moth(Lepidoptera: Plutellidae) 显示文摘 | Tabashnik B E Cushing N L Finson Nal | 1990 | Economic Entomol1990，83，： | 1 |
| 4 | An in-vitro study of the properties of single vagal aferents innervating guinea-pig airways显示文摘 | Fox AJ nal'ncs PJ Urban L | 1993 | J Physiol1993，469，1： | 1 |
| 5 | Fixed-bed py-rolysis of cotton stalk for liquid and solid products显示文摘 | Pütün A E Nurgül ?nal E P | | 0，，11： | 1 |
| 6 | Spontaneous rupture and thrombosis of an intrahepatic portal vein aneurysm显示文摘 | N. Okur M. ?nal E. Akgül O. Demircan | 2003 | Abdominal Imaging2003，，5： | 1 |
| 7 | The impact of pretreatment with bolus dose of enteral glutamine on acute lung injury induced by oleic acid in rats显示文摘 | A. Ebru Salman Fahri Yeti?ir Mehmet K?l?? ?zkan ?nal Ahmet Dostbil Dilara Zeybek Mustafa Aksoy Figen Kaymak Tu?rul ?elik Süheyla ünver | 2014 | Journal of Anesthesia2014，，3： | 1 |
| 8 | Contribution of fabric characteristics and laundering to shrinkage of weft knitted fabrics 显示文摘 | NAL L CANDAN C | 2003 | Textile Research Journal2003，73，3： | 1 |
| 9 | Shear-induced crysmUimtlon precurmr studies in model polyethylene blends by in-situ rheo-SAXS and rheo-WAXD显示文摘 | Yang L Smmni R H Sics I nal | 2004 | Macromolecules2004，37，13： | 1 |
| 10 | Spontaneous rupture and thrombosis of an intrahepatic portal vein aneurysm显示文摘 | N. Okur M. ?nal E. Akgül O. Demircan | 2003 | Abdominal Imaging2003，，5： | 1 |
| 11 | Biliary–enteric fistulas: report of five cases and review of the literature显示文摘 | M. ?nal M. O?uz E. Aksungur S. Soyupak S. B?rüban E. Akgül | 1999 | European Radiology1999，，6： | 1 |
| 12 | Investigation of Coxiella burnetii and Brucella seropositivities in patients presenting with acute fever显示文摘 | Günal O Barut S Ayan M KιlιcS Duygu F | 2013 | Mikrobiyol Bul2013，47，2： | 1 |
| 13 | Multi-aspect analysis of ureteral access sheath usage in retrograde intrarenal surgery: A RIRSearch group study显示文摘Objective:To evaluate the effect of ureteral access sheath(UAS)use and calibration change on stone-free rate and complications of retrograde intrarenal surgery(RIRS).Methods:Data from 568 patients undergoing RIRS for kidney or upper ureteral stones were retrospectively included.Firstly,patients were compared after 1:1 propensity score matching,according to UAS usage during RIRS(UAS used[+]87 and UAS non-used[−]87 patients).Then all UAS+patients(n=481)were subdivided according to UAS calibration:9.5-11.5 Fr,10-12 Fr,11-13 Fr,and 13-15 Fr.Primary outcomes of the study were the success and complications of RIRS.Results:Stone-free rate of UAS+patients(86.2%)was significantly higher than UAS−patients(70.1%)after propensity score matching(p=0.01).Stone-free rate increased with higher caliber UAS(9.5-11.5 Fr:66.7%;10-12 Fr:87.0%;11-13 Fr:90.6%;13-15 Fr:100%;p<0.001).Postoperative complications of UAS+patients(11.5%)were significantly lower than UAS−patients(27.6%)(p=0.01).Complications(8.7%)with 9.5-11.5 Fr UAS was lower than thicker UAS(17.2%)but was not statistically significant(p=0.09).UAS usage was an independent factor predicting stone-free status or peri-and post-operative complications(odds ratio[OR]3.654,95%confidence interval[CI]1.314-10.162;OR 4.443,95%CI 1.350-14.552;OR 4.107,95%CI 1.366-12.344,respectively).Conclusion:Use of UAS in RIRS may increase stone-free rates,which also increase with higher caliber UAS.UAS usage may reduce complications;however,complications seemingly increase with higher UAS calibration. | OktayÖzman HacıM.Akgül Cem Başataç ÖnderÇınar Eyüp B.Sancak Cenk M.Yazıcı BülentÖnal Haluk Akpınar on behalf of the RIRSearch Study Group | 2024 | Asian Journal of Urology2024，11，1： | 0 |
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